Make an object act like a string & a movieClip

Question

Hi,
The scenario is as follows:
I have a movieClip on the stage called "home_btn" and another called "home".
When moving over the home_btn movieClip I want the timeline inside of home to play. I used the slice command to get rid of the _btn which works fine, which is proven by the trace command, but it doesn't seem to be able to enter the timeline of home.
home_btn.addEventListener(MouseEvent.MOUSE_OVER, onOver);      
function onOver(event:MouseEvent)
        var selectedButton:Object;
        var currentTarget:String = event.target.name;
        selectedButton = currentTarget.slice(0, currentTarget.indexOf("_"));
        trace(selectedButton);
        selectedButton.gotoAndPlay("over");     
The error message I get is this:
TypeError:  Error #1006: value is not a function.
     at Version1_fla::MainTimeline/onOver()
PS: I know the obvious way to make this work, but I want it to be mass-usable. Hence the complications.
Thank you for you help,
Virinao

Answer 1

Solved!
With the help of associative Arrays. It works like a mediator between a string and the movieClips which you have on your stage!
var tempButton:Object = new Object;
var mySlice:String;
tempButton["home"] = home;
home_btn.addEventListener(MouseEvent.MOUSE_OVER, onOver);
function onOver(event:MouseEvent)
        var currentTarget:String = event.target.name;
        mySlice = currentTarget.slice(0, currentTarget.indexOf("_"));
        trace(mySlice);
        tempButton[mySlice].gotoAndPlay("over");